I am contributing to the Sansa Clip+ Forum as a 2-week owner of a SanDisk Clip Sport. I think these two units have major similarities. I do not own a Sansa Clip+.
After a few minutes of Google searching your most recent questions, I am wondering if you should not buy a 32G SD card and stick to using 16 GB SD cards.
Looks like the the Clip+ has a music file limit of 6000 or 6500 songs.
I am confused if this limit applies to the internal player memory OR, a combination of the internal memory with the SD card. OR, maybe the internal memory and the SD card each have a 6000-6500 music file limit.
I imagine that a 32 GB SD card will hold way more than 6500 music files, and the excess above 6500 may be ignored by the Clip+ music database ???
I think (?) the Sansa Clip+ internal Settings Format Command will just clean out all your personal settings and restore the player to original condition, retaining whatever version of firmware you currently have installed.
(Do not use any computer based format command on the internal player memory.)
What Firmware version are you using? Maybe check out all the messages in this very long thread:
http://forums.sandisk.com/t5/Sansa-Clip-Sansa-Clip/Sansa-Clip-Firmware-Update-01-02-18/td-p/280756
Best Wishes
